<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-199X</journal-id>
<journal-title><![CDATA[Revista odontológica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Odont. Mex]]></abbrev-journal-title>
<issn>1870-199X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Odontología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-199X2016000200077</article-id>
<article-id pub-id-type="doi">10.1016/j.rodmex.2016.04.002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caries dental y microorganismos asociados a la caries en la saliva de los alumnos del primer año de la Facultad de Odontología, UNAM]]></article-title>
<article-title xml:lang="en"><![CDATA[Dental caries and caries-associated mechanisms found in the saliva of first year students at the School of Dentistry, UNAM (National Autonomous University of Mexico)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arreguín-Cano]]></surname>
<given-names><![CDATA[Juan Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ríos Gerónimo]]></surname>
<given-names><![CDATA[Cecilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Bermúdez]]></surname>
<given-names><![CDATA[Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ostia Pérez]]></surname>
<given-names><![CDATA[María Fernanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ventura Arroyo]]></surname>
<given-names><![CDATA[Jairo Agustín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez Valadez]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Rosas]]></surname>
<given-names><![CDATA[Zeltzin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez-Venegas]]></surname>
<given-names><![CDATA[Gloria]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,UNAM Facultad de Odontología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<volume>20</volume>
<numero>2</numero>
<fpage>77</fpage>
<lpage>81</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-199X2016000200077&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-199X2016000200077&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-199X2016000200077&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se estudiaron 380 alumnos del primer año en la Facultad de Odontología (n = 380) (periodo 2012-2013) a &#64257;n de determinar el índice CPOD y relacionar si la caries está asociada con los microorganismos Streptococcus y Lactobacillus. El índice CPOD (cariado, perdido y obturado) se registró usando los parámetros de la Organización Mundial de la Salud. Se tomaron muestras de saliva de cada alumno y se determinaron las unidades formadoras de colonias de Streptococcus y Lactobacillus. La media de los índices CPOD fue de 7.25 ± 4.59. Las mujeres (n = 278) y hombres (n = 102) presentaron una media de índices CPOD de 7.11 ± 4.66 y 7.29 ± 4.57, respectivamente. Encontramos que los alumnos de 19 años presentaron menos caries que los estudiantes de otras edades. Tanto Streptococcus y Lactobacillus se correlacionaron signi&#64257;cativamente entre sí, así como en la incidencia de caries. Un incremento en el número de estos microorganismos, especialmente de Streptococcus mutans, se asociaron con el incremento en CPOD.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Three hundred and eighty first year students of the National School of Dentistry (UNAM) (n = 380) (academic year 2012-2013), were assessed targeting determination of DMFT (decayed, missing, lost teeth) index as well as to establish a relationship of whether caries is associated to Lactobacillus and Streptococcus microorganisms. DMFT index was recorded using World Health Organization (WHO) parameters. Samples of all students were taken and colony-forming units of Streptococcus and Lactobacillus were determined. DMFT indexes mean was established at 7.25 ± 4.59. Females (n = 278) and males (n = 102) exhibited mean DMFT indexes of 7.11 ± 4.66 and 7.29 ± 4.57 respectively. Results revealed that 19 year old students exhibited lesser amounts of caries than students of other ages. Both Streptococcus and Lactobacillus were significantly correlated to each other as well as to caries incidence. Increase in the number of the aforementioned micro-organisms, especially Streptococcus mutans, were associated to DMFT increase.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Índice CPOD]]></kwd>
<kwd lng="es"><![CDATA[unidades formadoras de colonias]]></kwd>
<kwd lng="es"><![CDATA[Streptococcus]]></kwd>
<kwd lng="es"><![CDATA[Lactobacillus]]></kwd>
<kwd lng="en"><![CDATA[DMFT index]]></kwd>
<kwd lng="en"><![CDATA[colony forming units]]></kwd>
<kwd lng="en"><![CDATA[Streptococcus]]></kwd>
<kwd lng="en"><![CDATA[Lactobacillus]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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